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WO2018124563A1 - Lentille de téléconvertisseur et dispositif électronique comprenant celle-ci - Google Patents

Lentille de téléconvertisseur et dispositif électronique comprenant celle-ci Download PDF

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Publication number
WO2018124563A1
WO2018124563A1 PCT/KR2017/014801 KR2017014801W WO2018124563A1 WO 2018124563 A1 WO2018124563 A1 WO 2018124563A1 KR 2017014801 W KR2017014801 W KR 2017014801W WO 2018124563 A1 WO2018124563 A1 WO 2018124563A1
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WO
WIPO (PCT)
Prior art keywords
lens
tele
refractive power
converter
lenses
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Application number
PCT/KR2017/014801
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English (en)
Korean (ko)
Inventor
김창근
Original Assignee
삼성전자 주식회사
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Publication date
Application filed by 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Priority to US16/468,726 priority Critical patent/US20190317299A1/en
Publication of WO2018124563A1 publication Critical patent/WO2018124563A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/16—Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/004—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having four lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/04—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
    • G02B15/06—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part by changing the front part
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • G02B27/005—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration for correction of secondary colour or higher-order chromatic aberrations
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/60—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having five components only

Definitions

  • Various embodiments relate to a teleconverter lens and an electronic device including the same.
  • the present invention relates to a teleconverter lens and an electronic device including the same.
  • An electronic device for example, a mobile device or a user device, may provide various services through various sensor modules.
  • the electronic device may provide a multimedia service, for example, a photo service or a video service.
  • a multimedia service for example, a photo service or a video service.
  • the use of electronic devices increases, the use of cameras functionally connected with electronic devices also increases. According to the demand of the user, the camera performance and / or resolution of the electronic device is improved.
  • Various kinds of scenery, people, or self shots may be taken by using a camera of the electronic device.
  • multimedia for example, a photo or video, may be shared on social network sites or other media.
  • camera lenses for mobile devices are ranging from low resolution to high resolution, from small sensor formats to larger sensor formats, for example from 1/8 ′′ to 1/2 ′′ sensors, and telephoto.
  • Various lenses have been developed, from lenses to ultra wide-angle lenses.
  • Various embodiments are provided as a tele converter lens mounted on the object side of the main photographing lens, it is possible to provide a tele converter lens capable of various aberration correction while minimizing the overall size of the optical system by minimizing the distance between the lenses.
  • Various embodiments may provide an electronic device including a teleconverter lens.
  • the teleconverter lens according to the embodiment for solving the foregoing or other problems is, for example, a teleconverter lens mounted on the object side of the main photographing lens, in order from the object side toward the main photographing lens.
  • a first lens disposed to have a positive refractive power;
  • a second lens having refractive power and having at least one surface aspherical surface;
  • one or more lenses having refractive power is, for example, a teleconverter lens mounted on the object side of the main photographing lens, in order from the object side toward the main photographing lens.
  • a first lens disposed to have a positive refractive power
  • And one or more lenses having refractive power is, for example, a teleconverter lens mounted on the object side of the main photographing lens, in order from the object side toward the main photographing lens.
  • an electronic device that includes an imaging lens including one or more lenses; It is mounted on the object side of the photographing lens and disposed in order from the object side toward the photographing lens, and has a first lens having positive refractive power, a refractive power, a second lens having at least one aspherical surface, and a refractive power.
  • a tele converter lens comprising one or more lenses; And an image sensor for converting an optical image formed by an optical system consisting of the tele-converter lens and the photographing lens into an electrical signal.
  • the tele-converter lens may be mounted on the object side of the main photographing lens to implement an optical system having an increased focal length, and may also facilitate aberration correction while minimizing an outer diameter of the optical system.
  • the optical system after the tele-converter lens is mounted on the main photographing lens may maintain optical performance such as resolution and brightness (F number) of the main photographing lens.
  • an electronic device including a teleconverter lens may photograph a subject farther away with higher performance than before the teleconverter lens is mounted.
  • FIG. 1 illustrates that the tele-converter lens of the first numerical embodiment is disposed on the object side of the main photographing lens, according to various embodiments.
  • FIG. 2 is aberration diagrams showing spherical aberration, astigmatism, and distortion of the teleconverter lens of the first numerical embodiment, according to various embodiments.
  • FIG. 3 is an aberration diagram illustrating lateral chromatic aberration of the teleconverter lens of the first numerical embodiment according to various embodiments.
  • FIG. 4 illustrates that the tele-converter lens of the second numerical embodiment is disposed on the object side of the main photographing lens, according to various embodiments.
  • FIG. 5 is an aberration diagram illustrating spherical aberration, astigmatism, and distortion of the teleconverter lens of the second numerical embodiment, according to various embodiments.
  • FIG. 6 is aberration diagrams showing lateral chromatic aberration of the teleconverter lens of the second numerical embodiment according to various embodiments.
  • FIG. 7 illustrates that the tele-converter lens of the third numerical embodiment is disposed on the object side of the main photographing lens, according to various embodiments.
  • FIG. 8 is an aberration diagram illustrating spherical aberration, astigmatism, and distortion of the teleconverter lens of the third numerical embodiment, according to various embodiments.
  • FIG. 9 is aberration diagrams showing lateral chromatic aberration of the teleconverter lens of the third numerical embodiment according to various embodiments.
  • FIG. 10 illustrates an electronic device including a tele converter lens according to various embodiments of the present disclosure.
  • FIG. 11 illustrates a network environment system according to various embodiments.
  • FIG. 12 is a block diagram of an electronic device according to various embodiments of the present disclosure.
  • expressions such as “A or B,” “at least one of A or / and B,” or “one or more of A or / and B” may include all possible combinations of items listed together.
  • “A or B,” “at least one of A and B,” or “at least one of A or B,” includes (1) at least one A, (2) at least one B, Or (3) both of cases including at least one A and at least one B.
  • first,” “second,” “first,” or “second,” as used herein may modify various components, regardless of order and / or importance, and may form a component. It is used to distinguish it from other components and does not limit the components.
  • the first user device and the second user device may represent different user devices regardless of the order or importance.
  • the first component may be called a second component, and similarly, the second component may be renamed to the first component.
  • One component (such as a first component) is "(functionally or communicatively) coupled with / to" to another component (such as a second component) or " When referred to as “connected to”, it should be understood that any component may be directly connected to the other component or may be connected through another component (eg, a third component).
  • a component e.g., a first component
  • another component e.g., a second component
  • no other component e.g., a third component
  • the expression “configured to” as used in this document is, for example, “having the capacity to” depending on the context, for example, “suitable for,” “. It may be used interchangeably with “designed to,” “adapted to,” “made to,” or “capable of.”
  • the term “configured to” may not necessarily mean only “specifically designed to” in hardware. Instead, in some situations, the expression “device configured to” may mean that the device “can” along with other devices or components.
  • the phrase “processor configured (or configured to) perform A, B, and C” may be implemented by executing a dedicated processor (eg, an embedded processor) to perform its operation, or one or more software programs stored in a memory device. It may mean a general-purpose processor (eg, a CPU or an application processor) capable of performing corresponding operations.
  • An electronic device may include, for example, a smartphone, a tablet personal computer, a mobile phone, a video phone, and an e-book reader.
  • wearable devices may be accessory (eg, watches, rings, bracelets, anklets, necklaces, glasses, contact lenses, or head-mounted-devices (HMDs)), textiles, or clothing one-pieces (eg, it may include at least one of an electronic garment, a body attachment type (eg, a skin pad or a tattoo), or a living implantable type (eg, an implantable circuit).
  • HMDs head-mounted-devices
  • the electronic device may be a home appliance.
  • Home appliances are, for example, televisions, digital video disk (DVD) players, audio, refrigerators, air conditioners, vacuum cleaners, ovens, microwaves, washing machines, air purifiers, set-top boxes, home automation controls Panel (home automation control panel), security control panel, TV box (e.g. Samsung HomeSync TM , Apple TV TM , or Google TV TM ), game console (e.g. Xbox TM , PlayStation TM ), electronic dictionary It may include at least one of an electronic key, a camcorder, or an electronic picture frame.
  • DVD digital video disk
  • the electronic device may include a variety of medical devices (e.g., various portable medical measuring devices such as blood glucose meters, heart rate monitors, blood pressure meters, or body temperature meters), magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), Such as computed tomography (CT), imaging or ultrasound, navigation devices, satellite navigation systems (global navigation satellite systems), event data recorders (EDRs), flight data recorders (FDRs), and automotive infotainment ) Devices, ship's electronic equipment (e.g.
  • Point of sales, point of sales, or Internet of things may include at least one.
  • an electronic device may be a piece of furniture or a building / structure, an electronic board, an electronic signature receiving device, a projector, or various measuring devices (eg, Water, electricity, gas, or radio wave measuring instrument).
  • the electronic device may be a combination of one or more of the aforementioned various devices.
  • An electronic device according to an embodiment may be a flexible electronic device.
  • the electronic device according to an embodiment of the present disclosure is not limited to the above-described devices, and may include a new electronic device according to technology development.
  • the term user may refer to a person who uses an electronic device or a device (eg, an artificial intelligence electronic device) that uses an electronic device.
  • a device eg, an artificial intelligence electronic device
  • FIG. 1 illustrates that the tele-converter lens 100-1 of the first numerical embodiment according to various embodiments is disposed on the object side OBJ of the main photographing lens M.
  • the image side may represent, for example, the direction in which an image plane (IMG) in which an image is imaged, and the object side (OBJ).
  • object side may indicate the direction in which the object (object).
  • the "object side surface" of the lens refers to the lens surface on the side where the subject is located, for example, on the basis of the optical axis OA
  • the "image side surface” refers to the optical axis OA.
  • the right side of the drawing can be represented by the lens surface of the side having the image surface IMG.
  • the upper surface IMG may be, for example, an imaging device surface or an image sensor surface.
  • the image sensor may include, for example, a sensor such as a CMOS image sensor (CMOS) or a charge coupled device (CCD).
  • CMOS CMOS image sensor
  • CCD charge coupled device
  • the image sensor is not limited thereto and may be, for example, various devices for converting an image of a subject into an electrical image signal.
  • the tele-converter lens 100-1 is an afocal optical system disposed on the object side OBJ of the main photographing lens M, and is photographed at a magnification higher than that of the main photographing lens M.
  • FIG. This possible optical system can be provided.
  • the tele-converter lens 100-1 is arranged in order from the object side OBJ toward the main photographing lens M, and includes a first lens L1-1 and a second lens L2-1. And one or more lenses.
  • the first lens L1-1 may be a lens having positive refractive power.
  • the first lens L1-1 may have a meniscus shape in which an object side surface is convex.
  • the second lens L2-1 may have positive refractive power, and at least one surface may be aspherical.
  • the aspherical surface it is easy to correct the magnification chromatic aberration generated by the tele-converter lens 100-1, and the image surface curvature which appears when the incident pupil of the main photographing lens M is close to the tele-converter lens 100-1. It is possible to improve peripheral performance degradation.
  • One or both surfaces of the second lens L2-1 may be aspherical.
  • the second lens L2-1 may have a meniscus shape in which an object side surface is convex.
  • the second lens L2-1 may be made of a plastic resin material. When using a plastic material, aspheric surface formation may be easier than when using a glass material.
  • the tele-converter lens 100-1 may also include a third lens L3-1 having negative refractive power and a fourth lens L4-1 having positive refractive power.
  • the third lens L3-1 may be concave at the side of the main photographing lens M, and the fourth lens L4-1 may be convex at the object side OBJ. This shape of the third lens L3-1 and the fourth lens L4-1 may facilitate the minimization of the distance between the third lens L3-1 and the fourth lens L4-1.
  • the main photographing lens M may include one or more lenses to form an image of a subject on the image surface IMG.
  • the optical system including the main photographing lens M and the tele-converter lens 100-1 may implement a focal length longer than the focal length of the main photographing lens M.
  • a cover glass CG and an aperture ST may be disposed between the main photographing lens M and the tele converter lens 100-1.
  • the cover glass CG may be provided to protect the main photographing lens M.
  • the cover glass CG may be disposed on an outer surface of the electronic device provided with the main photographing lens M.
  • the stop ST is used to adjust the diameter of the luminous flux and may include, for example, an aperture stop, a variable stop, or a stop in the form of a mask.
  • At least one optical element may be provided between the main photographing lens M and the image surface IMG.
  • the not shown optical element may be, for example, a low pass filter or an infrared cut filter.
  • FIG. 4 illustrates that the tele-converter lens 100-2 of the second numerical embodiment is disposed on the object side of the main photographing lens M, according to various embodiments.
  • the tele-converter lens 100-2 is disposed in order from the object side OBJ toward the main photographing lens M, and includes the first lens L1-2 and the second lens L2-2. ) And one or more lenses.
  • the first lens L1-2 may be a lens having positive refractive power.
  • the first lens L1-2 may have a meniscus shape of which an object side surface is convex.
  • the second lens L2-2 may have positive refractive power, and at least one surface may be aspherical.
  • at least one surface may be aspherical.
  • One or both surfaces of the second lens L2-2 may be aspherical.
  • the second lens L2-2 may have a meniscus shape of which an object side surface is convex.
  • the second lens L2-2 may be made of a plastic resin material.
  • the tele-converter lens 100-2 may further include a third lens L3-2 having negative refractive power, a fourth lens L4-2 having positive refractive power, and a fifth lens L5-2 having negative refractive power. It may include.
  • the third lens L3-2 may have a concave shape on the side of the main photographing lens M.
  • FIG. At least one surface of the third lens L3-2 may be aspherical or both surfaces thereof may be aspherical.
  • the third lens L3-2 may have a shape in which the negative refractive power becomes weaker from the central portion to the peripheral portion.
  • the fourth lens L4-2 may be convex on the side of the main photographing lens M, and may have a biconvex shape.
  • the object-side surface of the fifth lens L5-2 may be concave.
  • the fourth lens L4-2 and the fifth lens L5-2 may form a bonded lens that is bonded to each other.
  • FIG. 7 illustrates that the tele-converter lens 100-3 of the third numerical embodiment is disposed on the object side of the main photographing lens M, according to various embodiments.
  • the first and second lenses L1-3 and L2-3 may be arranged in order from the object side OBJ toward the main photographing lens M. FIG. ) And one or more lenses.
  • the first lens L1-3 may be a lens having positive refractive power.
  • the first lens L1-3 may have a meniscus shape of which an object side surface is convex.
  • the second lens L2-3 may have positive refractive power, and at least one surface may be aspherical.
  • at least one surface may be aspherical.
  • One or both surfaces of the second lens L2-3 may be aspherical.
  • the second lens L2-3 may be made of a plastic resin material.
  • the center of the object-side surface of the second lens L2-3 may be convex, and the center of the main lens side may be concave.
  • the tele-converter lens 100-3 may further include a third lens L3-3 having a positive refractive power, a fourth lens L4-3 having a negative refractive power, and a fifth lens L5-3 having a positive refractive power. It may include.
  • the third lens L3-3 may have a convex shape on the object side.
  • the third lens L3-3 may have a biconvex shape.
  • the fourth lens L4-3 may have a concave shape at an object side.
  • the fourth lens L4-3 may have a double concave shape.
  • the third lens L3-3 and the fourth lens L4-3 may form a junction lens bonded to each other.
  • the fifth lens L5-3 may have a convex shape on the object side.
  • the fifth lens L5-3 may have a biconvex shape.
  • the tele-converter lenses 100-1, 100-2, and 100-3 minimize the inter-lens spacing to suppress an increase in the size of the lens disposed on the object side OBJ, thereby reducing the optical system. It is compact.
  • the aspherical surface is properly employed to minimize image surface curvature that may occur when mounted on the main photographing lens (M).
  • the tele converter lens 100-1 may satisfy the following equation.
  • the following equations will be described with reference to the tele-converter lens 100-1 according to the first numerical embodiment shown in FIG. 1. However, the same may be applied to other embodiments.
  • TT is the total thickness on the optical axis OA of the tele-converter lens 100-1 and 1stY is the effective diameter of the first lens L1-1.
  • Equation 1-1 limits the ratio of the total length of the tele-converter lens 100-1 to the effective diameter of the first lens L1-1. Miniaturization is possible by reducing the center thickness on the optical axis OA of the tele-converter lens 100-1 and the effective radius of the first lens. In addition, when the tele-converter lens 100-1 is mounted on the object side of the main photographing lens M, a ray cutting (vignetting) phenomenon may not appear.
  • the teleconverter lens 100-1 may satisfy the following equation, in which Equation 1-1 is modified.
  • the tele converter lens 100-1 may satisfy the following equation.
  • AT is the sum of the distances between the lenses included in the tele-converter lens 100-1
  • LT is the sum of the thicknesses of the lenses included in the tele-converter lens 100-1.
  • AT represents the distance on the optical axis OA between the first lens L1-1 and the second lens L2-1, and the optical axis between the second lens L2-1 and the third lens L3-1.
  • LT is on the optical axis OA of the first lens L1-1.
  • the sum of the thickness, the thickness on the optical axis OA of the second lens L2-1, the thickness on the optical axis OA of the third lens L3-2, and the thickness on the optical axis OA of the fourth lens L4-1. Indicates.
  • Equation 2-1 limits the ratio of the sum of the distances between the lenses to the sum of the thicknesses of the lenses constituting the tele-converter lens 100-1.
  • the tele-converter lens 100-1 may satisfy the following equation, in which Equation 2-1 is modified.
  • the tele converter lens 100-1 may satisfy the following equation.
  • EFLD is the focal length of the main photographing lens M
  • TEFL is the focal length of the entire optical system to which the tele-converter lens 100-1 is applied to the object side OBJ of the main photographing lens M.
  • a focal length increased by 1.4 times to 2.2 times larger than the focal length of the main photographing lens M may be realized.
  • definitions of aspherical surfaces used in the tele-converter lenses 100-1, 100-2, and 100-3 are as follows.
  • the aspherical surface can be expressed by the following equation with the x-axis as the optical axis and the y-axis as the direction perpendicular to the optical axis.
  • x is the distance from the vertex of the lens in the optical axis direction
  • y is the distance in the direction perpendicular to the optical axis
  • K is the conic constant
  • A, B, C, D are aspherical coefficients
  • c represents the inverse of the radius of curvature at the vertex of the lens, respectively.
  • a tele-converter lens may be implemented through a numerical embodiment according to various designs as follows.
  • the lens surface numbers (1, 2, 3, .Sn; n is a natural number) are sequentially arranged in line from the object side O to the image side I.
  • FIG. A * after the lens surface number indicates that the surface is aspheric.
  • nd represents a refractive index and
  • vd represents an Abbe's number.
  • the unit of curvature radius, thickness or spacing shown in each numerical example is millimeter (mm).
  • Table 1 illustrates a teleconverter lens of a first numerical embodiment according to various embodiments, and Table 1 shows design data of the first numerical embodiment, for example.
  • Table 2 shows aspherical surface coefficients in the first numerical example.
  • FIG. 2 illustrates longitudinal spherical aberration, astigmatic field curves and distortion of the tele-converter lens 100-1 according to the first numerical embodiment of the present invention.
  • Longitudinal spherical aberration is for light with wavelengths of 656.2800 (NM, nanometer), 587.5600 (NM), 546.0700 (NM), 486.1300 (NM), 435.8400 (NM), for example.
  • Astigmatism shows tangential field curvature (T) and sagittal field curvature (S) for light having a wavelength of 587.5600 (NM).
  • Distortion aberrations are shown for light with a wavelength of 587.5600 (NM).
  • FIG 3 illustrates lateral chromatic aberration of the tele-converter lens 100-1 according to the first numerical embodiment of the present invention. Lateral chromatic aberration is shown for light having wavelengths of 656.2800 (NM), 587.5600 (NM), 546.0700 (NM), 486.1300 (NM), and 435.8400 (NM).
  • Table 3 shows, for example, design data of the second numerical embodiment.
  • Table 4 shows the aspherical surface coefficients in the second numerical example.
  • FIG. 5 illustrates longitudinal spherical aberration, astigmatic field curves, and distortion of the tele-converter lens 100-2 according to the second numerical embodiment of the present invention.
  • FIG. 6 illustrates lateral chromatic aberration of the tele-converter lens 100-2 according to the second numerical embodiment of the present invention.
  • FIG. 7 illustrates a teleconverter lens 100-3 according to a third numerical embodiment according to various embodiments, and Table 5 shows, for example, design data of a third numerical embodiment.
  • Table 6 shows the aspherical surface coefficients in the third numerical example.
  • FIG. 8 illustrates longitudinal spherical aberration, astigmatic field curves, and distortion of the tele-converter lens 100-3 according to the third numerical embodiment of the present invention.
  • FIG 9 illustrates lateral chromatic aberration of the tele-converter lens 100-3 according to the third numerical embodiment of the present invention.
  • Table 7 shows the total thickness (TT) on the optical axis of the tele-converter lens according to the first to third numerical embodiments, the effective diameter (1stY) of the first object-side lens, and the sum of the distances between the lenses including the tele-converter lens (AT).
  • Optical specifications such as the sum of the thicknesses of the lenses and the focal lengths f1, f2, f3, f4, and f5 of each lens.
  • the units shown in the table below are in millimeters (mm).
  • Example 1 Example 2
  • Example 3 TT 26.46 34.6 24.57 1stY 14.52 19.7 13.86 AT 1.28 4.71 4.42 LT 25.18 29.89 20.15 f1 113.64 272.68
  • 34.36 f2 40.57 42.58 -46.18 f3 -8.71 -26.36 11.97 f4 17.11 12.08 -4.24 f5 -10.26 11.52
  • Table 8 shows that the tele-converter lens according to the first to third numerical embodiments satisfies the above conditions.
  • Example 2 1.5 ⁇ TT / 1stY ⁇ 2.0 1.822 1.756 1.773 AT / LT ⁇ 0.45 0.051 0.158 0.22 1.4 ⁇ TEFL / EFLD ⁇ 2.2 1.94 1.96 1.93
  • the tele-converter lenses 100-1, 100-2, and 100-3 may be applied to, for example, a photographing apparatus employing an image sensor, and an electronic device including the photographing apparatus.
  • the tele converter lens according to an exemplary embodiment may be applied to various electronic devices such as a digital camera, an interchangeable lens camera, a video camera, a mobile phone camera, a camera for a small mobile device, and the like.
  • 10 illustrates an example of an electronic device EA having a tele-converter lens according to an exemplary embodiment. 10 illustrates an example in which the electronic device EA is applied to a mobile phone, but is not limited thereto.
  • the electronic device EA is for capturing an image of a subject, and includes a main photographing lens M having at least one lens, a tele converter lens TC mounted to the main photographing lens M, a main photographing lens M, It may include an image sensor (IS) for receiving an image formed by the tele-converter lens (TC) to convert the image to an electrical image signal.
  • the main photographing lens M and the image sensor IS are disposed inside the electronic device EA, and the cover glass on which the teleconverter lens TC is mounted is disposed on the outer surface of the electronic device EA. (CG) can be attached.
  • any one of the tele-converter lenses 100-1, 100-2, and 100-3 according to various embodiments described with reference to FIGS. 1 to 9 may be employed.
  • a photographing apparatus capable of photographing at an increased magnification while maintaining existing optical performances such as resolution and brightness may be implemented.
  • the electronic device 201 may include a bus 110, a processor 220, a camera module 225, a memory 230, an input / output interface 250, a display 260, and a communication interface 270.
  • the electronic device 201 may omit at least one of the components or additionally include other components.
  • the bus 210 may include, for example, circuitry that couples the components 210-270 to each other and transfers communication (eg, control messages and / or data) between the components.
  • the processor 220 may include one or more of a central processing unit (CPU), an application processor (AP), or a communication processor (CP).
  • the processor 220 may execute, for example, an operation or data processing related to control and / or communication of at least one other component of the electronic device 201.
  • the camera module 225 is, for example, a device capable of capturing still images and moving images.
  • the camera module 225 may include at least one image sensor (eg, a front sensor or a rear sensor), a lens, an image signal processor (ISP), Or flash (eg, LED or xenon lamp, etc.).
  • ISP image signal processor
  • flash eg, LED or xenon lamp, etc.
  • a tele converter lens may be applied to the camera module 225.
  • the memory 230 may include volatile and / or nonvolatile memory.
  • the memory 230 may store, for example, commands or data related to at least one other element of the electronic device 201.
  • the memory 230 may store software and / or a program 240.
  • the program 240 may be, for example, a kernel 241, middleware 243, an application programming interface (API) 245, and / or an application program (or “application”) 247, or the like. It may include. At least a portion of kernel 241, middleware 243, or API 245 may be referred to as an operating system (OS).
  • OS operating system
  • Kernel 241 is a system resource (e.g., used to execute an action or function implemented in other programs, such as middleware 243, API 245, or application program 247, for example).
  • the bus 210, the processor 220, or the memory 230 may be controlled or managed.
  • the kernel 241 may provide an interface for controlling or managing system resources by accessing individual components of the electronic device 201 from the middleware 243, the API 245, or the application program 247. Can be.
  • the middleware 243 may serve as an intermediary for allowing the API 245 or the application program 247 to communicate with the kernel 141 to exchange data.
  • the middleware 243 may process one or more work requests received from the application program 247 according to priority.
  • the middleware 243 may use system resources (eg, the bus 210, the processor 220, or the memory 230, etc.) of the electronic device 201 for at least one of the application programs 247. Priority can be given.
  • the middleware 243 may perform scheduling or load balancing on the one or more work requests by processing the one or more work requests according to the priority given to the at least one.
  • the API 245 is, for example, an interface for the application 247 to control functions provided by the kernel 241 or the middleware 243, for example, file control, window control, image processing, or text. It may include at least one interface or function (eg, a command) for control.
  • the input / output interface 250 may serve as, for example, an interface capable of transferring a command or data input from a user or another external device to other component (s) of the electronic device 201.
  • the input / output interface 250 may output a command or data received from other component (s) of the electronic device 201 to a user or another external device.
  • Display 260 may be, for example, a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic light-emitting diode (OLED) display, or Microelectromechanical systems (MEMS) displays, or electronic paper displays.
  • the display 260 may display, for example, various contents (eg, text, images, videos, icons, symbols, etc.) to the user.
  • the display 260 may include a touch screen, and may receive, for example, a touch, gesture, proximity, or hovering input using an electronic pen or a part of a user's body.
  • the communication interface 270 may establish communication between, for example, the electronic device 201 and an external device (eg, the first external electronic device 202, the second external electronic device 204, or the server 206). Can be.
  • the communication interface 270 may be connected to the network 262 through wireless or wired communication to communicate with an external device (eg, the second external electronic device 204 or the server 206).
  • Wireless communication is, for example, a cellular communication protocol, for example, long-term evolution (LTE), LTE Advance (LTE-A), code division multiple access (CDMA), wideband CDMA (WCDMA), UMTS (universal).
  • LTE long-term evolution
  • LTE-A LTE Advance
  • CDMA code division multiple access
  • WCDMA wideband CDMA
  • UMTS universal
  • WBro mobile telecommunications system
  • WiBro wireless broadband
  • GSM global system for mobile communications
  • wireless communication may include, for example, near field communication 264.
  • the short range communication 164 may include, for example, at least one of wireless fidelity (WiFi), Bluetooth, near field communication (NFC), global navigation satellite system (GNSS), and the like.
  • WiFi wireless fidelity
  • NFC near field communication
  • GNSS global navigation satellite system
  • GNSS may be, for example, among the Global Positioning System (GPS), the Global Navigation Satellite System (Glonass), the Beidou Navigation Satellite System (“Beidou”), or Galileo, the European global satellite-based navigation system. It may include at least one.
  • GPS Global Positioning System
  • Beidou Beidou Navigation Satellite System
  • Galileo the European global satellite-based navigation system. It may include at least one.
  • GPS may be interchangeably used with "GNSS”.
  • the wired communication may include, for example, at least one of a universal serial bus (USB), a high definition multimedia interface (HDMI), a reduced standard-232 (RS-232), a plain old telephone service (POTS), and the like.
  • the network 262 may include a telecommunications network, for example, at least one of a computer network (for example, a LAN or WAN), the Internet, and a telephone network.
  • Each of the first and second external electronic devices 202 and 204 may be the same or different type of device as the electronic device 201.
  • server 206 may comprise a group of one or more servers.
  • all or some of operations executed in the electronic device 201 may be executed in another or a plurality of electronic devices (for example, the electronic devices 202 and 204 or the server 206.)
  • the electronic device 201 may instead execute or execute the function or service by itself, or at least some function associated therewith.
  • the other electronic device may request the requested function or The additional function may be executed and the result may be transferred to the electronic device 201.
  • the electronic device 201 may provide the requested function or service by processing the received result as it is or additionally.
  • Cloud computing distributed computing, or client-server computing techniques can be used.
  • the electronic device 301 may include, for example, all or part of the electronic device 201 illustrated in FIG. 11.
  • the electronic device 301 may include one or more processors (for example, an application processor (AP) 310), a communication module 320, a subscriber identification module 324, a memory 330, a sensor module 340, and an input device ( 350, display 360, interface 370, audio module 380, camera module 391, power management module 395, battery 396, indicator 397, and motor 398. Can be.
  • AP application processor
  • the processor 310 may control, for example, a plurality of hardware or software components connected to the processor 310 by running an operating system or an application program, and may perform various data processing and operations.
  • the processor 310 may be implemented with, for example, a system on chip (SoC).
  • SoC system on chip
  • the processor 310 may further include a graphic processing unit (GPU) and / or an image signal processor.
  • the processor 310 may load and process instructions or data received from at least one of the other components (eg, nonvolatile memory) into the volatile memory, and store various data in the nonvolatile memory. have.
  • the communication module 320 may have a configuration that is the same as or similar to that of the communication interface 270 of FIG. 11.
  • the communication module 320 may be, for example, a cellular module 321, a WiFi module 323, a Bluetooth module 325, a GNSS module 327 (eg, a GPS module, a Glonass module, a Beidou module, or a Galileo module). It may include an NFC module 328 and a radio frequency (RF) module 329.
  • RF radio frequency
  • the cellular module 321 may provide, for example, a voice call, a video call, a text service, or an internet service through a communication network. According to an embodiment of the present disclosure, the cellular module 321 may perform identification and authentication of the electronic device 301 within a communication network by using a subscriber identification module (eg, a SIM card) 324. According to an embodiment of the present disclosure, the cellular module 221 may perform at least some of the functions that the processor 310 may provide. According to an embodiment, the cellular module 321 may include a communication processor (CP).
  • CP communication processor
  • Each of the WiFi module 323, the Bluetooth module 325, the GNSS module 327, or the NFC module 328 may include, for example, a processor for processing data transmitted and received through a corresponding module.
  • at least some (eg, two or more) of the cellular module 321, WiFi module 323, Bluetooth module 325, GNSS module 327, or NFC module 328 may be one integrated chip. (IC) or in an IC package.
  • the RF module 329 may transmit and receive a communication signal (for example, an RF signal), for example.
  • the RF module 329 may include, for example, a transceiver, a power amp module (PAM), a frequency filter, a low noise amplifier (LNA), an antenna, or the like.
  • PAM power amp module
  • LNA low noise amplifier
  • at least one of the cellular module 221, the WiFi module 323, the Bluetooth module 325, the GNSS module 327, or the NFC module 328 may transmit and receive an RF signal through a separate RF module. Can be.
  • Subscriber identification module 324 may include, for example, a card containing a subscriber identification module and / or an embedded SIM, and may include unique identification information (eg, an integrated circuit card identifier (ICCID)) or It may include subscriber information (eg, international mobile subscriber identity (IMSI)).
  • ICCID integrated circuit card identifier
  • IMSI international mobile subscriber identity
  • the memory 330 may include, for example, an internal memory 332 or an external memory 334.
  • the internal memory 332 may be, for example, volatile memory (eg, dynamic RAM (DRAM), static RAM (SRAM), or synchronous dynamic RAM (SDRAM), etc.) or non-volatile memory (eg, non-volatile memory).
  • volatile memory eg, dynamic RAM (DRAM), static RAM (SRAM), or synchronous dynamic RAM (SDRAM), etc.
  • non-volatile memory eg, non-volatile memory.
  • SSD solid state drive
  • the external memory 334 may be a flash drive, for example, compact flash (CF), secure digital (SD), micro secure digital (Micro-SD), mini secure digital (Mini-SD), or extreme xD (extreme). It may further include a digital, a multi-media card (MMC) or a memory stick (memory stick).
  • the external memory 334 may be functionally and / or physically connected to the electronic device 301 through various interfaces.
  • the sensor module 340 may measure a physical quantity or detect an operation state of the electronic device 301 to convert the measured or detected information into an electrical signal.
  • the sensor module 340 is, for example, the gesture sensor 340A, the gyro sensor 340B, the barometric pressure sensor 340C, the magnetic sensor 340D, the acceleration sensor 340E, the grip sensor 340F, the proximity sensor ( 340G), color sensor 340H (e.g., red (green, blue) sensor), biometric sensor 340I, temperature / humidity sensor 340J, illuminance sensor 340K, or UV (ultra violet) ) May include at least one of the sensors 340M.
  • the gesture sensor 340A the gyro sensor 340B, the barometric pressure sensor 340C, the magnetic sensor 340D, the acceleration sensor 340E, the grip sensor 340F, the proximity sensor ( 340G), color sensor 340H (e.g., red (green, blue) sensor), biometric sensor 340I, temperature
  • the sensor module 340 may include, for example, an olfactory sensor, an electromyography sensor, an electroencephalogram sensor, an electrocardiogram sensor. And infrared (IR) sensors, iris sensors, and / or fingerprint sensors.
  • the sensor module 340 may further include a control circuit for controlling at least one or more sensors belonging therein.
  • the electronic device 301 further includes a processor configured to control the sensor module 340 as part of or separately from the processor 310, while the processor 310 is in a sleep state, The sensor module 340 may be controlled.
  • the input device 350 may be, for example, a touch panel 352, a (digital) pen sensor 354, a key 356, or an ultrasonic input device ( 358).
  • the touch panel 352 may use at least one of capacitive, resistive, infrared, or ultrasonic methods, for example.
  • the touch panel 352 may further include a control circuit.
  • the touch panel 352 may further include a tactile layer to provide a tactile response to the user.
  • the (digital) pen sensor 354 may be, for example, part of a touch panel or may include a separate sheet for recognition.
  • the key 356 may include, for example, a physical button, an optical key, or a keypad.
  • the ultrasonic input device 358 may detect ultrasonic waves generated by an input tool through a microphone (for example, the microphone 388) and check data corresponding to the detected ultrasonic waves.
  • Display 360 may include panel 362, hologram device 364, or projector 366.
  • the panel 362 may include a configuration that is the same as or similar to the display 260 of FIG. 21.
  • the panel 362 may be implemented to be, for example, flexible, transparent, or wearable.
  • the panel 362 may be configured as a single module together with the touch panel 352.
  • panel 362 may include a pressure sensor (or force sensor) capable of measuring the strength of the pressure on the user's touch.
  • the pressure sensor may be integrated with the touch panel 352 or may be implemented with one or more sensors separate from the touch panel 352.
  • the hologram 364 may show a stereoscopic image in the air by using interference of light.
  • the projector 366 may display an image by projecting light onto a screen.
  • the screen may be located inside or outside the electronic device 301.
  • the display 360 may further include a control circuit for controlling the panel 362, the hologram device 364, or the projector 366.
  • the interface 370 may be, for example, a high-definition multimedia interface (HDMI) 372, a universal serial bus (USB) 374, an optical interface 376, or a D-subminiature 378).
  • the interface 370 may be included in, for example, the communication interface 370 illustrated in FIG. 22.
  • interface 370 may be, for example, a mobile high-definition link (MHL) interface, a secure digital (SD) card / multi-media card (MMC) interface, or an IrDA (infrared). data association) may include a standard interface.
  • MHL mobile high-definition link
  • SD secure digital
  • MMC multi-media card
  • IrDA infrared
  • the audio module 380 may bidirectionally convert, for example, a sound and an electrical signal. At least some components of the audio module 380 may be included in, for example, the input / output interface 245 illustrated in FIG. 22.
  • the audio module 380 may process sound information input or output through, for example, a speaker 382, a receiver 384, an earphone 386, a microphone 388, or the like.
  • the camera module 391 is, for example, a device capable of capturing still images and moving images.
  • the camera module 391 may include one or more image sensors (eg, a front sensor or a rear sensor), a lens, and an image signal processor (ISP). Or flash (eg, LED or xenon lamp, etc.).
  • ISP image signal processor
  • flash eg, LED or xenon lamp, etc.
  • a tele converter lens may be applied to the camera module 391.
  • the power management module 395 may manage power of the electronic device 301, for example.
  • the electronic device 301 may be an electronic device powered by a battery, but is not limited thereto.
  • the power management module 395 may include a power management integrated circuit (PMIC), a charger integrated circuit (ICC), or a battery or fuel gauge.
  • the PMIC may have a wired and / or wireless charging scheme.
  • the wireless charging method may include, for example, a magnetic resonance method, a magnetic induction method, an electromagnetic wave method, or the like, and may further include additional circuits for wireless charging, such as a coil loop, a resonance circuit, a rectifier, and the like. have.
  • the battery gauge may measure, for example, the remaining amount of the battery 396, the voltage, the current, or the temperature during charging.
  • the battery 396 may include, for example, a rechargeable battery and / or a solar battery.
  • the indicator 397 may display a specific state of the electronic device 301 or a part thereof (for example, the processor 310), for example, a booting state, a message state, or a charging state.
  • the motor 398 may convert an electrical signal into mechanical vibration, and may generate a vibration or haptic effect.
  • the electronic device 301 may include a processing device (eg, a GPU) for supporting mobile TV.
  • the processing apparatus for supporting mobile TV may process media data according to a standard such as digital multimedia broadcasting (DMB), digital video broadcasting (DVB), or mediaFlo TM .
  • DMB digital multimedia broadcasting
  • DVD digital video broadcasting
  • mediaFlo TM mediaFlo TM
  • the tele-converter lens is, for example, a tele-converter lens mounted on the object side of the main photographing lens, and is arranged in order from the object side toward the main photographing lens, and has a positive refractive power. lens; A second lens having refractive power and having at least one surface aspherical surface; And one or more lenses having refractive power.
  • the tele converter lens may satisfy the following condition.
  • TT is the total thickness on the optical axis of the tele-converter lens and 1stY is the effective diameter of the first lens.
  • the tele converter lens may satisfy the following condition.
  • AT is the sum of the distances between the lenses included in the tele-converter lens
  • LT is the sum of the thickness of the lenses included in the tele-converter lens.
  • the tele converter lens may satisfy the following condition.
  • EFLD is a focal length of the main photographing lens
  • TEFL is a focal length of the entire optical system including the tele-converter lens and the main photographing lens.
  • the first lens may have a meniscus shape of which an object side is convex.
  • the material of the second lens may be plastic resin.
  • the second lens may have positive refractive power.
  • the second lens may have a meniscus shape of which an object side is convex.
  • the one or more lenses may include a third lens having negative refractive power; And a fourth lens having positive refractive power.
  • the third lens may be concave at the main photographing lens side
  • the fourth lens may be convex at the object side.
  • the at least one lens may further include a fifth lens disposed between the fourth lens and the main photographing lens and having a negative refractive power.
  • the fourth lens may be convex on the main photographing lens side, and the fifth lens may be concave on the object side.
  • the fourth lens and the fifth lens may form a bonded lens bonded to each other.
  • the second lens may have negative refractive power.
  • the one or more lenses may include a third lens having positive refractive power; A fourth lens having negative refractive power; And a fifth lens having positive refractive power.
  • the third lens may have a biconvex shape
  • the fourth lens may have a biconcave shape
  • the third lens and the fourth lens may form a bonded lens bonded to each other.
  • an electronic device may include a photographing lens including one or more lenses; A first lens having a positive refractive power, a second lens having a refractive power, and having at least one surface being aspherical, disposed at an object-side position of the photographing lens and disposed in an order from the object side toward the photographing lens; A tele converter lens comprising one or more lenses having refractive power; And an image sensor for converting an optical image formed by an optical system consisting of the tele-converter lens and the photographing lens into an electrical signal.
  • the electronic device may satisfy the following conditions.
  • TT is the total thickness on the optical axis of the tele-converter lens
  • 1stY is the effective diameter of the first lens
  • AT is the sum of the distance between the lenses included in the tele-converter lens
  • LT is included in the tele-converter lens It is the sum of the thicknesses of the lenses.
  • the electronic device may satisfy the following conditions.
  • EFLD is a focal length of the photographing lens
  • TEFL is a focal length of the entire optical system including the teleconverter lens and the photographing lens.
  • Each of the components described in this document may be composed of one or more components, and the names of the corresponding components may vary depending on the type of electronic device.
  • the electronic device may be configured to include at least one of the components described in this document, and some components may be omitted or further include additional components.
  • some of the components of the electronic device according to various embodiments of the present disclosure may be combined to form a single entity, and thus may perform the same functions of the corresponding components before being combined.
  • module may refer to a unit that includes one or a combination of two or more of hardware, software, or firmware.
  • a “module” may be interchangeably used with terms such as, for example, unit, logic, logical block, component, or circuit.
  • the module may be a minimum unit or part of an integrally constructed part.
  • the module may be a minimum unit or part of performing one or more functions.
  • the “module” can be implemented mechanically or electronically.
  • a “module” is one of application-specific integrated circuit (ASIC) chips, field-programmable gate arrays (FPGAs), or programmable-logic devices that perform certain operations, known or developed in the future. It may include at least one.
  • ASIC application-specific integrated circuit
  • FPGAs field-programmable gate arrays
  • At least a portion of an apparatus (e.g., modules or functions thereof) or method (e.g., operations) may be, for example, computer-readable storage media in the form of a program module. It can be implemented as a command stored in. When the command is executed by a processor (eg, the processor 220 of FIG. 11), the one or more processors may perform a function corresponding to the command.
  • the computer-readable storage medium may be the memory 230, for example.
  • Computer-readable recording media include hard disks, floppy disks, magnetic media (e.g. magnetic tape), optical media (e.g. compact disc read only memory), DVD ( digital versatile discs, magneto-optical media (e.g. floptical disks), hardware devices (e.g. read only memory, random access memory (RAM), or flash memory)
  • the program instructions may include not only machine code generated by a compiler, but also high-level language code executable by a computer using an interpreter, etc.
  • the hardware device described above may be various. And may be configured to operate as one or more software modules to perform the operations of an embodiment, and vice versa. It may include at least one or more of the elements, some of the elements may be omitted, or further include other additional components, etc.

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Abstract

L'invention concerne une lentille de téléconvertisseur et un dispositif électronique. La lentille de téléconvertisseur selon l'invention, qui est montée sur un côté objet d'une lentille photographique principale, comprend : une première lentille ayant une réfringence positive ; une seconde lentille ayant une réfringence et ayant au moins une surface qui est une surface asphérique ; et une ou plusieurs lentilles ayant une réfringence, les lentilles étant agencées dans cet ordre depuis le côté objet vers la lentille photographique principale.
PCT/KR2017/014801 2016-12-26 2017-12-15 Lentille de téléconvertisseur et dispositif électronique comprenant celle-ci WO2018124563A1 (fr)

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KR1020160179316A KR102736354B1 (ko) 2016-12-26 2016-12-26 텔레 컨버터 렌즈 및 이를 포함하는 전자 장치

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KR102328088B1 (ko) * 2019-09-20 2021-11-19 주식회사 수옵틱스 스코프의 배율 증대용 어댑터 렌즈 및 이를 구비한 조준경
TWI771811B (zh) 2020-09-18 2022-07-21 大立光電股份有限公司 電子裝置
CN218995757U (zh) * 2021-12-15 2023-05-09 东莞市宇瞳汽车视觉有限公司 定焦镜头
CN115079385B (zh) * 2022-08-22 2023-01-24 江西联益光学有限公司 光学镜头及成像设备

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